کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1505182 993755 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electric properties of high strain textured Na0.5Bi0.5TiO3–BaTiO3–K0.5Na0.5NbO3 thick films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Electric properties of high strain textured Na0.5Bi0.5TiO3–BaTiO3–K0.5Na0.5NbO3 thick films
چکیده انگلیسی

Textured (1 − x)(0.94Na0.5Bi0.5TiO3 − 0.06BaTiO3) − xK0.5Na0.5NbO3 (abbreviated as NBT–BT–KNN) thick film on platinum substrate was prepared via tape casting method. The structure and electrical properties of the thick films were investigated. The results show that the thick films possess typical polycrystalline perovskite structures and the orientation degree reached to 75%. The remnant polarization (Pr) and coercive field (Ec) were optimized to 11.2 μC/cm2 and 12.8 kV/cm for x = 0.02 thick film. The dielectric properties of NBT–BT–KNN thick films as a function of temperature were also investigated. With the addition of KNN, the Td (depolarization temperature) and TC (Curie temperature) are all decreased. Meanwhile, the dielectric constant is increased with the addition of the KNN at room temperature. The piezoelectric constant of the thick film was calculated from unipolar electric field-induced strain curve. With the addition of KNN, the d33 value increased and reached to the maximum value of 349 pm/V for x = 0.02 thick film.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Sciences - Volume 13, Issue 5, May 2011, Pages 934–937
نویسندگان
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